All this talk of giallos made me finally get around to watching this
Giallo. 5/10
A bit disappointing, both as an Argento film and a giallo. All the themes are there but it seems pretty flat. And Brody's double-role as the killer is absurd.
It was apparently written as a homage to Bava and Argento and the script was pushed around Hollywood, but with no takers. Eventually Argento himself landed the job of effectively directing a homage to himself. That could've been really interesting but Argento has since said that he wasn't at all happy with the final cut and having very little control over the film from the beginning.